During December 2024, contributed to the cosdpp/cos24-cards repository by delivering a Personal Business Card UI overhaul for the homepage. This work involved restructuring HTML and CSS to create a dedicated section that highlights professional and educational details, supporting enhanced personal branding and user engagement. The implementation included responsive design techniques, such as adding a viewport meta tag and integrating external fonts to ensure consistent appearance across devices. A binary image asset was incorporated to improve visual presentation. The project focused on front end development using HTML and CSS, laying groundwork for future personalization features while maintaining code quality and traceability.